body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

.nav {
    display: flex;
    align-items: center;
    background-color: #333;
    color: white;
    padding: 10px;
}

.nav img {
    height: 40px;
    margin-right: 10px;
}

.nav .nav-span {
    color: white;
    margin-left: 20px;
    text-decoration: none;
}

.container {
    display: flex;
    margin: 20px;
    width: 100%;
}

.left {
    width: 25%;
    padding: 20px;
}

.card {
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 15px;
    background-color: #f9f9f9;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.right {
    width: 75%;
    padding: 20px;
}

.blog {
    border: 1px solid #ccc;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
    background-color: rgba(249, 249, 249, 0.55); /* 更改背景色为淡化的白色 */
}

.blog .title {
    font-weight: bold;
    font-size: 1.2em;
}

.blog .date {
    color: green;
    font-style: italic;
}

.blog .desc {
    margin: 10px 0;
}

.blog .detail {
    display: inline-block;
    margin-top: 10px;
    padding: 10px;
    background-color: #8B4513; /* 更改按钮背景色为棕色 */
    color: white;
    text-decoration: none;
    border-radius: 5px;
}

.blog .detail:hover {
    background-color: #A0522D; /* 更改按钮悬停时的背景色 */
}